#!/bin/bash

#    Smart Card Management Tool (c) 2009 Timothy Pearson
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.

# The [secure] temporary directory for authentication
SECURE_DIRECTORY=/tmp/smartauth

# Create the secure directory and lock it down
mkdir -p $SECURE_DIRECTORY
chown root $SECURE_DIRECTORY
chgrp root $SECURE_DIRECTORY
chmod 600 $SECURE_DIRECTORY
SECURE_DIRECTORY=$(mktemp /tmp/smartauth/setupcard.XXXXXXXXXX)
rm -rf $SECURE_DIRECTORY
mkdir -p $SECURE_DIRECTORY
chown root $SECURE_DIRECTORY
chgrp root $SECURE_DIRECTORY
chmod 600 $SECURE_DIRECTORY

# See if required programs are installed
scriptor=$(whereis scriptor)
if [[ $scriptor == "scriptor:" ]]; then
	echo "ERROR: scriptor is not installed!  This program cannot continue!"
	zenity --error --text "ERROR: scriptor is not installed!\nThis program cannot continue!\n\nUsually, scriptor is part of the pcsc-tools package."
	exit
fi
opensc=$(whereis opensc-explorer)
if [[ $opensc == "opensc-explorer:" ]]; then
        echo "ERROR: opensc-explorer is not installed!  This program cannot continue!"
	zenity --error --text "ERROR: opensc-explorer is not installed!\nThis program cannot continue!\n\nUsually, opensc-explorer is part of the opensc package."
        exit
fi

if [[ $# -eq 0 ]]; then
	# Get card ATR
	FOUND_SUPPORTED_CARD=0
	echo "RESET" > $SECURE_DIRECTORY/query
	scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
	authokresponse="OK: "
	response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
	if [[ $response1 != "" ]]; then
		cat $SECURE_DIRECTORY/response2 | tr -d '\n' > $SECURE_DIRECTORY/response4
		stringtoreplace="Using T=0 protocolRESET> RESET< OK: "
		newstring=""
		sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
		smartatr=$(cat $SECURE_DIRECTORY/response4)
		echo "Got ATR: $smartatr"
		if [[ $smartatr == "3B BE 18 00 00 41 05 10 00 00 00 00 00 00 00 00 00 90 00 " ]]; then
			echo "Detected ACOS5 card"
			COMMAND_MODE="acos"
			CARD_NICE_NAME="ACOS5"
			FOUND_SUPPORTED_CARD=1
		fi
		if [[ $smartatr == "3B 02 14 50 " ]]; then
			echo "Detected Schlumberger CryptoFlex card"
			COMMAND_MODE="cryptoflex"
			CARD_NICE_NAME="Schlumberger CryptoFlex"
			FOUND_SUPPORTED_CARD=1
		fi
	else
		echo "No card detected!"
		zenity --error --text "ERROR: No SmartCard detected!"
		exit 1
	fi

	if [[ $FOUND_SUPPORTED_CARD -eq 0 ]]; then
		echo "Unsupported SmartCard detected!  ATR: $smartatr"
		zenity --error --text "ERROR: Unsupported SmartCard detected!\n\nATR: $smartatr"
		exit 1
	fi
	
	if [[ $COMMAND_MODE == "cryptoflex" ]]; then
		GET_CHALLENGE="C0 84 00 00 08"
		EXTERNAL_AUTH="C0 82 00 00 07 01"
		SELECT_FILE="C0 A4 00 00 02"
		DELETE_FILE="F0 E4 00 00 02"
	fi
	
	if [[ $COMMAND_MODE == "acos" ]]; then
		GET_CHALLENGE="00 84 00 00 08"
		EXTERNAL_AUTH1="00 82 00 81 08"
		EXTERNAL_AUTH2="00 82 00 82 08"
		EXTERNAL_AUTH3="00 82 00 83 08"
		SELECT_FILE="00 A4 00 00 02"
		DELETE_FILE="00 E4 00 00 00"
		READ_BINARY="00 B0 00 00 FF"
		UPDATE_BINARY="00 D6 00 00 FF"
		ACTIVATE_FILE="00 44 00 00 02"
	fi
fi

CREATE_LIFE_CYCLE="01"

createfile ()
{
	if [[ $COMMAND_MODE == "cryptoflex" ]]; then
		# Create transparent file with permissions:
		# delete, terminate, activate, deactivate, update, read for Key 1 and Key 2 only
		echo "F0 E0 00 FF 10 FF FF 00 $1 $2 01 3F 44 FF 44 01 03 11 FF 11" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
	fi

	if [[ $COMMAND_MODE == "acos" ]]; then
		# Create transparent file with permissions:
		# delete, terminate, activate, deactivate, update, read for Key 1, Key 2, and Key 3 only (SE 04)
		# created in DF 1000 under MF, SE file is 10FE
		#                      SIZE           TRANSPARENT

		echo "00 E0 00 00 1A 62 18 80 02 00 $1 82 01 01 83 02 $2 8A 01 $CREATE_LIFE_CYCLE 8C 08 7F 04 04 04 04 04 04 04" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
		echo $(cat $SECURE_DIRECTORY/response2)
	fi
}

updatekey ()
{
	if [[ $COMMAND_MODE == "cryptoflex" ]]; then
		echo "$SELECT_FILE 00 11" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
		echo "C0 D6 00 0D 0C 08 00 $1 05 05" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
	fi
}

hexcvt ()
{
	echo ""$1" "16" o p" | dc
}

initializeacos () {
	if [[ $COMMAND_MODE == "acos" ]]; then
		# Set MF Offset
		echo "00 D6 30 86 02 80 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Set EEPROM Limit
		echo "00 D6 30 8C 02 FF FF" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Enable Clear Card
		echo "00 D6 30 88 01 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Create MF
		echo "00 E0 00 00 0A 62 08 82 02 3F FF 83 02 3F 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Select MF
		echo "00 A4 00 00 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Create DF 1000 under MF, SE file is 10FE
		echo "00 E0 00 00 2C 62 2A 82 01 38 83 02 10 00 84 10 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8A 01 $CREATE_LIFE_CYCLE 8C 08 7F 04 04 04 04 04 04 04 8D 02 10 FE" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Select DF 1000 under MF
		echo "$SELECT_FILE 10 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Under DF 1000, create Key File EF2, file ID 10FD, read access never, SFI 02
		echo "00 E0 00 00 1D 62 1B 82 05 0C 01 00 15 04 83 02 10 FD 88 01 02 8A 01 $CREATE_LIFE_CYCLE 8C 08 7F 04 04 04 04 04 04 FF" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Select EF 10FD under DF 1000
		echo "$SELECT_FILE 10 FD" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Initialize key records in file 10FD
		# Key 1, 8-byte 1DES authentication only
		autkey=""
		while [[ ${#autkey} != 16 ]]; do
			autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT1] in hexidecimal.  Example: 0123456789abcdef")
		done
		autkey2=${autkey:0:2}
		autkey2="${autkey2} ${autkey:2:2}"
		autkey2="${autkey2} ${autkey:4:2}"
		autkey2="${autkey2} ${autkey:6:2}"
		autkey2="${autkey2} ${autkey:8:2}"
		autkey2="${autkey2} ${autkey:10:2}"
		autkey2="${autkey2} ${autkey:12:2}"
		autkey2="${autkey2} ${autkey:14:2}"
		echo "00 DC 00 00 0C 81 01 55 05 $autkey2" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		# Key 2, 8-byte 1DES authentication only
		autkey=""
		while [[ ${#autkey} != 16 ]]; do
			autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT2] in hexidecimal.  Example: 0123456789abcdef")
		done
		autkey2=${autkey:0:2}
		autkey2="${autkey2} ${autkey:2:2}"
		autkey2="${autkey2} ${autkey:4:2}"
		autkey2="${autkey2} ${autkey:6:2}"
		autkey2="${autkey2} ${autkey:8:2}"
		autkey2="${autkey2} ${autkey:10:2}"
		autkey2="${autkey2} ${autkey:12:2}"
		autkey2="${autkey2} ${autkey:14:2}"
		echo "00 DC 00 02 0C 82 01 55 05 $autkey2" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		# Key 3, 8-byte 1DES authentication only
		autkey=""
		while [[ ${#autkey} != 16 ]]; do
			autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT3] in hexidecimal.  Example: 0123456789abcdef")
		done
		autkey2=${autkey:0:2}
		autkey2="${autkey2} ${autkey:2:2}"
		autkey2="${autkey2} ${autkey:4:2}"
		autkey2="${autkey2} ${autkey:6:2}"
		autkey2="${autkey2} ${autkey:8:2}"
		autkey2="${autkey2} ${autkey:10:2}"
		autkey2="${autkey2} ${autkey:12:2}"
		autkey2="${autkey2} ${autkey:14:2}"
		echo "00 DC 00 02 0C 83 01 55 05 $autkey2" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Create SE file 10FE, SFI 03
		echo "00 E0 00 00 1C 62 1A 82 05 0C 01 00 11 04 83 02 10 FE 88 01 03 8A 01 $CREATE_LIFE_CYCLE 8C 07 7E 04 04 04 04 04 04" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Select MF
		echo "00 A4 00 00 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Select DF 1000 under MF
		echo "$SELECT_FILE 10 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Select EF 10FE under DF 1000
		echo "$SELECT_FILE 10 FE" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Initialize SE file 10FE
		# SE 01: External authentication of local key 1
		echo "00 DC 00 00 0B 80 01 01 A4 06 83 01 81 95 01 80" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		# SE 02: External authentication of local key 2
		echo "00 DC 00 02 0B 80 01 02 A4 06 83 01 82 95 01 80" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		# SE 03: External authentication of local key 3
		echo "00 DC 00 02 0B 80 01 03 A4 06 83 01 83 95 01 80" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		# SE 04: External authentication of local key 1, 2, or 3
		echo "00 DC 00 02 11 80 01 04 A4 0C 83 01 81 83 01 82 83 01 83 95 01 80" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Create authentication files
		createfile "FF" "10 01"
		createfile "FF" "10 02"
		createfile "FF" "10 03"
		createfile "FF" "10 04"
		createfile "FF" "10 05"
		createfile "FF" "10 06"
		createfile "FF" "10 07"
		createfile "FF" "10 08"
		createfile "FF" "10 09"
		createfile "FF" "10 0A"

		# Activate security on files
		echo "$ACTIVATE_FILE 10 01" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 02" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 03" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 04" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 05" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 06" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 07" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 08" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 09" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 0A" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 FD" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		echo "$ACTIVATE_FILE 10 FE" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
	fi
}

authenticatecard () {
	if [[ $authenticated != "1" ]]; then
		autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the 16-character Smart Card transport key [$1] in hexidecimal.  Example: 0123456789abcdef")
		if [[ ${#autkey} -eq 16 ]]; then
			if [[ $COMMAND_MODE == "acos" ]]; then
				# Select MF
				echo "00 A4 00 00 00" > $SECURE_DIRECTORY/query
				scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
				echo $(cat $SECURE_DIRECTORY/response2)
				# Make sure DF 1000 is selected
				echo "$SELECT_FILE 10 00" > $SECURE_DIRECTORY/query
				scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
				echo $(cat $SECURE_DIRECTORY/response2)
			fi

			# Authenticate card
			echo $GET_CHALLENGE > $SECURE_DIRECTORY/authscript
	
			scriptor $SECURE_DIRECTORY/authscript | grep 'Normal processing' > $SECURE_DIRECTORY/challenge
			perl -pi -e 's/ //g' $SECURE_DIRECTORY/challenge
			perl -pi -e 's/:Normalprocessing.//g' $SECURE_DIRECTORY/challenge
			perl -pi -e 's/<//g' $SECURE_DIRECTORY/challenge
			xxd -r -p $SECURE_DIRECTORY/challenge $SECURE_DIRECTORY/challenge
	
			# Now DES encrypt the challenge
			# Later, change the initialization vector to random if possible
			openssl des-ecb -in $SECURE_DIRECTORY/challenge -out $SECURE_DIRECTORY/response -K $autkey -iv 1
	
			if [[ $COMMAND_MODE == "acos" ]]; then
				# Truncate to 8 bytes
				dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=8

				# Expand to standard hex listing format
				xxd -g 1 $SECURE_DIRECTORY/response2 $SECURE_DIRECTORY/response
				dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=23 skip=9
			fi

			if [[ $COMMAND_MODE == "cryptoflex" ]]; then
				# Truncate to 6 bytes
				dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=6

				# Expand to standard hex listing format
				xxd -g 1 $SECURE_DIRECTORY/response2 $SECURE_DIRECTORY/response
				dd if=$SECURE_DIRECTORY/response of=$SECURE_DIRECTORY/response2 bs=1 count=17 skip=9
			fi
	
			# Assemble the response file
			response2=$(cat $SECURE_DIRECTORY/response2)
			if [[ $COMMAND_MODE == "acos" ]]; then
				if [[ $1 == "AUT1" ]]; then
					response1="$EXTERNAL_AUTH1 ${response2}"
				fi
				if [[ $1 == "AUT2" ]]; then
					response1="$EXTERNAL_AUTH2 ${response2}"
				fi
				if [[ $1 == "AUT3" ]]; then
					response1="$EXTERNAL_AUTH3 ${response2}"
				fi
			fi

			if [[ $COMMAND_MODE == "cryptoflex" ]]; then
				response1="$EXTERNAL_AUTH ${response2}"
			fi
			echo $response1 > $SECURE_DIRECTORY/response
	
			# Send the response!
			scriptor $SECURE_DIRECTORY/response > $SECURE_DIRECTORY/response2
			echo $(cat $SECURE_DIRECTORY/response2)
	
			# Get the result
			authokresponse="< 90 00 : Normal processing"
			response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
			echo $response1
			if [[ $response1 != "" ]]; then
				echo "Smart card validation successfull!"
				echo "Smart card login successfull!"
				authenticated="1"
			else
				echo "Login failed"
				zenity --error --text "That transport key is incorrect!\n\nPlease remember that there are a limited number\nof failed login attempts for this key,\nafter which your SmartCard will become useless."
			fi
		else
			echo "AUT1 key not 16 characters!"
			zenity --error --text "That transport key is invalid!"
		fi
	fi
}

get_file () {
	if [[ $COMMAND_MODE == "acos" ]]; then
		# Select EF $1 under DF 1000
		echo "$SELECT_FILE $1" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Read binary
		echo "$READ_BINARY" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		authokresponse="90 00 : Normal processing"
		response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
		if [[ $response1 != "" ]]; then
			cat $SECURE_DIRECTORY/response2 | tr -d '\n' > $SECURE_DIRECTORY/response4
			stringtoreplace="Using T=0 protocol00 B0 00 00 FF> 00 B0 00 00 FF< "
			newstring=""
			sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
			stringtoreplace=" 90 00 : Normal processing."
			newstring=""
			sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
			if [[ $2 == "text" ]]; then
				stringtoreplace=" 00"
				newstring=""
				sed -i "s#${stringtoreplace}#${newstring}#g" $SECURE_DIRECTORY/response4
			fi
			echo $(cat $SECURE_DIRECTORY/response4)
			rm -f $SECURE_DIRECTORY/lukskey
			xxd -r -p $SECURE_DIRECTORY/response4 $SECURE_DIRECTORY/lukskey
			RESPONSE=$SECURE_DIRECTORY/lukskey
		fi
	fi

	if [[ $COMMAND_MODE == "cryptoflex" ]]; then
		FILE=${1/ /}
		echo "get $FILE" | opensc-explorer
		RESPONSE="3F00_$FILE"
	fi
}

update_file () {
	if [[ $COMMAND_MODE == "acos" ]]; then
		# Select EF $1 under DF 1000
		echo "$SELECT_FILE $1" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)

		# Update existing file
		# Zero pad input file
		dd if=/dev/zero of=$SECURE_DIRECTORY/response2 bs=1 count=255
		dd if=$2 of=$SECURE_DIRECTORY/response2 bs=1 count=255 conv=notrunc

		# Truncate to 255 bytes and expand to standard hex listing format
		xxd -l 255 -ps -c 1 $SECURE_DIRECTORY/response2 > $SECURE_DIRECTORY/response
		cat $SECURE_DIRECTORY/response | tr '\n' ' ' > $SECURE_DIRECTORY/hexready
		echo "$UPDATE_BINARY $(cat $SECURE_DIRECTORY/hexready)" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
		echo $(cat $SECURE_DIRECTORY/response2)
	fi	

	if [[ $COMMAND_MODE == "cryptoflex" ]]; then
		# Delete old file
		echo "$DELETE_FILE $1" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2 2>/dev/null
		echo $(cat $SECURE_DIRECTORY/response2)
		
		# Create new file
		createfile "FF" $1
		FILE=${1/ /}
		echo "put $FILE $2" | opensc-explorer
	fi
}

insertnewtext () {
	FOUNDTEXT=$(cat $2 | grep $1)
	echo $FOUNDTEXT;
	if [[ $FOUNDTEXT != "" ]]; then
		echo "$1 already exists in $2"
	else
		echo $1 >> $2
	fi
}

getcolumn () {
	perl -ne '@cols = split; print "$cols['$1']\n"' ;
}

function createlukskey {
	ROOTPARTITION=$(mount | grep 'on / ' | getcolumn 0)
	if [ -e $ROOTPARTITION ]; then
		ROOTPARTITION=$(echo $ROOTPARTITION | sed 's/\/dev\/mapper\///')
		CRYPTPARTITION=$(cat /etc/crypttab | grep $ROOTPARTITION | getcolumn 1)
		if [ -e $CRYPTPARTITION ]; then
			zenity --question --ok-label="Yes" --cancel-label="No" --text="I have detected that $ROOTPARTITION is your root partition, \nand therefore $CRYPTPARTITION is your encrypted root partition. \nIs this correct?"
			correct=$?
			if [[ correct -eq 0 ]] ; then
				echo "Confirmed--proceeding"
				insertnewtext dm_mod /etc/initramfs-tools/modules
				insertnewtext dm_crypt /etc/initramfs-tools/modules
				insertnewtext aes_x86_64 /etc/initramfs-tools/modules
				insertnewtext sha256 /etc/initramfs-tools/modules
				insertnewtext vfat /etc/initramfs-tools/modules
				insertnewtext fat /etc/initramfs-tools/modules
				insertnewtext nls_cp437 /etc/initramfs-tools/modules
				insertnewtext nls_iso8859_1 /etc/initramfs-tools/modules
				insertnewtext hci_usb /etc/initramfs-tools/modules
				insertnewtext usb_storage /etc/initramfs-tools/modules
				insertnewtext libusual /etc/initramfs-tools/modules
				insertnewtext ehci_hcd /etc/initramfs-tools/modules
				insertnewtext uhci_hcd /etc/initramfs-tools/modules
				insertnewtext usbcore /etc/initramfs-tools/modules
				insertnewtext ext2 /etc/initramfs-tools/modules
				insertnewtext reiserfs /etc/initramfs-tools/modules
				echo "/etc/initramfs-tools/modules updated"
				mkdir -p /etc/crypto
				head -c 255 /dev/urandom > /etc/crypto/smart.key
				chown -R root /etc/crypto
				chgrp -R root /etc/crypto
				chmod -R 600 /etc/crypto
				echo "$(zenity --entry --hide-text --title="LUKS Password" --text="Please enter the LUKS password for $CRYPTPARTITION")" > $SECURE_DIRECTORY/lukspass
				cat $SECURE_DIRECTORY/lukspass | cryptsetup luksAddKey $CRYPTPARTITION /etc/crypto/smart.key
				rm $SECURE_DIRECTORY/lukspass
				correct=$?
				if [[ correct -eq 0 ]] ; then
					echo "OK!"
					OLDCRYPTLINE=$(cat /etc/crypttab | grep $ROOTPARTITION)
					NEWCRYPTLINE="$ROOTPARTITION	$CRYPTPARTITION	smart.key	luks,keyscript=/usr/bin/cryptosmartcard.sh"
					sed -i "s#${OLDCRYPTLINE}#${NEWCRYPTLINE}#g" /etc/crypttab
					echo "Crypttab updated"
					cp -Rp /etc/smartauth/smartauth.sh.in /usr/bin/smartauth.sh
					OLDKEY="<your key in hexidecimal>"
					authenticatecard "AUT3"
					if [[ $authenticated = "1" ]]; then
						NEWKEY=$autkey
						echo $NEWKEY > /etc/smartauth/smartauth.key
						sed -i "s#${OLDKEY}#${NEWKEY}#g" /usr/bin/smartauth.sh
						chmod 600 /usr/bin/smartauth.sh
						chmod a+x /usr/bin/smartauth.sh
						echo "Updating initramfs"
						update-initramfs -u -k all
						echo "Securing directories..."
						chmod 600 "/boot/initrd.img-$(uname -r)"
						chmod -R 600 /etc/smartauth
					else
						rm -rf /etc/crypto/smart.key
						rm -rf /usr/share/initramfs-tools/hooks/cryptlukssc
						rm -f /usr/bin/smartauth.sh
					fi
				else
					echo "LUKS add key failed!"
					zenity --error --text "Failed to add LUKS key!\nReverting all changes..."
					rm -rf /etc/crypto/smart.key
					rm -rf /usr/share/initramfs-tools/hooks/cryptlukssc
				fi
			fi
		else
			zenity --error --text "Either I am unable to properly detect your encrypted partition,\nor your hard disk is not encrypted.\nNo changes to your system have been made."
		fi
	else
		zenity --error --text "I am unable to properly detect your root partition.\nNo changes to your system have been made."
	fi
}

function importlukskey {
	ROOTPARTITION=$(mount | grep 'on / ' | getcolumn 0)
	if [ -e $ROOTPARTITION ]; then
		ROOTPARTITION=$(echo $ROOTPARTITION | sed 's/\/dev\/mapper\///')
		CRYPTPARTITION=$(cat /etc/crypttab | grep $ROOTPARTITION | getcolumn 1)
		if [ -e $CRYPTPARTITION ]; then
			zenity --question --ok-label="Yes" --cancel-label="No" --text="I have detected that $ROOTPARTITION is your root partition, \nand therefore $CRYPTPARTITION is your encrypted root partition. \nIs this correct?"
			correct=$?
			if [[ correct -eq 0 ]] ; then
				echo "Confirmed--proceeding"
				FILE=$(zenity --file-selection --title="Select the new LUKS encryption key file")
				case $? in
					0)
						continueluksupdate=1;;
					1)
						continueluksupdate=0;;
					-1)
						continueluksupdate=0;;
				esac
				if [[ $continueluksupdate -eq 1 ]]; then
					echo "File selected--proceeding"
					insertnewtext dm_mod /etc/initramfs-tools/modules
					insertnewtext dm_crypt /etc/initramfs-tools/modules
					insertnewtext aes_x86_64 /etc/initramfs-tools/modules
					insertnewtext sha256 /etc/initramfs-tools/modules
					insertnewtext vfat /etc/initramfs-tools/modules
					insertnewtext fat /etc/initramfs-tools/modules
					insertnewtext nls_cp437 /etc/initramfs-tools/modules
					insertnewtext nls_iso8859_1 /etc/initramfs-tools/modules
					insertnewtext hci_usb /etc/initramfs-tools/modules
					insertnewtext usb_storage /etc/initramfs-tools/modules
					insertnewtext libusual /etc/initramfs-tools/modules
					insertnewtext ehci_hcd /etc/initramfs-tools/modules
					insertnewtext uhci_hcd /etc/initramfs-tools/modules
					insertnewtext usbcore /etc/initramfs-tools/modules
					insertnewtext ext2 /etc/initramfs-tools/modules
					insertnewtext reiserfs /etc/initramfs-tools/modules
					echo "/etc/initramfs-tools/modules updated"
					mkdir -p /etc/crypto
					cp -Rp $FILE /etc/crypto/smart.key
					chown -R root /etc/crypto
					chgrp -R root /etc/crypto
					chmod -R 600 /etc/crypto
					echo "$(zenity --entry --hide-text --title="LUKS Password" --text="Please enter the LUKS password for $CRYPTPARTITION")" > $SECURE_DIRECTORY/lukspass
					cat $SECURE_DIRECTORY/lukspass | cryptsetup luksAddKey $CRYPTPARTITION /etc/crypto/smart.key
					rm $SECURE_DIRECTORY/lukspass
					correct=$?
					if [[ correct -eq 0 ]] ; then
						echo "OK!"
						OLDCRYPTLINE=$(cat /etc/crypttab | grep $ROOTPARTITION)
						NEWCRYPTLINE="$ROOTPARTITION	$CRYPTPARTITION	smart.key	luks,keyscript=/usr/bin/cryptosmartcard.sh"
						sed -i "s#${OLDCRYPTLINE}#${NEWCRYPTLINE}#g" /etc/crypttab
						echo "Crypttab updated"
						cp -Rp /etc/smartauth/smartauth.sh.in /usr/bin/smartauth.sh
						OLDKEY="<your key in hexidecimal>"
						authenticatecard "AUT3"
						if [[ $authenticated = "1" ]]; then
							NEWKEY=$autkey
							echo $NEWKEY > /etc/smartauth/smartauth.key
							sed -i "s#${OLDKEY}#${NEWKEY}#g" /usr/bin/smartauth.sh
							chmod 600 /usr/bin/smartauth.sh
							chmod a+x /usr/bin/smartauth.sh
							echo "Updating initramfs"
							update-initramfs -u -k all
							echo "Securing directories..."
							chmod 600 "/boot/initrd.img-$(uname -r)"
							chmod -R 600 /etc/smartauth
						else
							rm -rf /etc/crypto/smart.key
							rm -rf /usr/share/initramfs-tools/hooks/cryptlukssc
							rm -f /usr/bin/smartauth.sh
						fi
					else
						echo "LUKS add key failed!"
						zenity --error --text "Failed to add LUKS key!\nReverting all changes..."
						rm -rf /etc/crypto/smart.key
						rm -rf /usr/share/initramfs-tools/hooks/cryptlukssc
					fi
				else
					zenity --error --text "No changes to your system have been made."
				fi
			fi
		else
			zenity --error --text "Either I am unable to properly detect your encrypted partition,\nor your hard disk is not encrypted.\nNo changes to your system have been made."
		fi
	else
		zenity --error --text "I am unable to properly detect your root partition.\nNo changes to your system have been made."
	fi
}

function loadlukskey {
	echo "Loading LUKS key..."
	authenticatecard "AUT1"
	if [[ $authenticated = "1" ]]; then
		update_file "10 01" "/etc/crypto/smart.key"
	fi
}

function clearlukskey {
	echo "Clearing LUKS key..."
	authenticatecard "AUT1"
	if [[ $authenticated = "1" ]]; then
		dd if=/dev/zero of=$SECURE_DIRECTORY/smart.key.blank bs=255 count=1
		update_file "10 01" "$SECURE_DIRECTORY/smart.key.blank"
		rm -f $SECURE_DIRECTORY/smart.key.blank
	fi
}

function loadusername {
	echo "Loading username..."
	authenticatecard "AUT1"
	if [[ $authenticated = "1" ]]; then
		zenity --entry --title="SmartCard Username" --text="Please enter the username of the account to be associated with this SmartCard" > $SECURE_DIRECTORY/username
		update_file "10 02" "$SECURE_DIRECTORY/username"
		rm -f $SECURE_DIRECTORY/username
	fi
}

function loadpassword {
	echo "Loading password..."
	authenticatecard "AUT1"
	if [[ $authenticated = "1" ]]; then
		zenity --entry --hide-text --title="SmartCard Password" --text="Please enter the password of the account that is associated with this SmartCard" > $SECURE_DIRECTORY/password
		update_file "10 03" "$SECURE_DIRECTORY/password"
		rm -f $SECURE_DIRECTORY/password
	fi
}

GREETER="Welcome to the SmartCard authentication setup utility!\n\nAUT1 is the manual update key\nAUT2 is the login key\nAUT3 is the LUKS decrypt key\n\nCard ATR: $smartatr\nDetected: $CARD_NICE_NAME\n\nPlease select an action from the list below:"

while [[ 1 -eq 1 ]]; do
	if [ -e "/etc/smartauth/smartauthmon.key" ]; then
		LOGINOPTION="Disable automatic login for TDE"
	else
		LOGINOPTION="Enable automatic login for TDE"
	fi

	if [[ $COMMAND_MODE == "acos" ]]; then
		ACOS_INIT_OPTION="FALSE Initialize-blank-ACOS"

		# See if the card has an MF yet
		# Select MF
		echo "00 A4 00 00 00" > $SECURE_DIRECTORY/query
		scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
		echo $(cat $SECURE_DIRECTORY/response2)
		authokresponse="< 61 "
		response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
		echo $response1
		if [[ $response1 != "" ]]; then
			echo "MF exists, checking for DF 1000"
			# MF exists, check for DF 1000
			echo "00 A4 00 00 02 10 00" > $SECURE_DIRECTORY/query
			scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
			echo $(cat $SECURE_DIRECTORY/response2)
			authokresponse="< 61 "
			response1=$(cat $SECURE_DIRECTORY/response2 | grep "$authokresponse")
			echo $response1
			if [[ $response1 != "" ]]; then
				echo "DF 1000 exists, this card was already initialized!"
				ACOS_INIT_OPTION=""
			fi
		fi
	fi

	if [[ $COMMAND_MODE == "cryptoflex" ]]; then
		ACOS_INIT_OPTION=""
	fi

	if [[ $# -eq 0 ]]; then
		if [ -e "/etc/crypto/smart.key" ]; then
			selection=$(zenity --width=400 --height=550 --list --radiolist --title="SmartCard Authentication Setup" \
				--text="$GREETER" \
				--column="" --column="Action" \
				TRUE "Update LUKS Initramfs Transport Key [AUT3]" \
				FALSE "Import LUKS encryption key from file to system" \
				FALSE "Get LUKS encryption key from Smart Card [File 1001]" \
				FALSE "Load LUKS encryption key into Smart Card [File 1001]" \
				FALSE "Clear LUKS encryption key from Smart Card [File 1001]" \
				FALSE "Load username into Smart Card [File 1002]" \
				FALSE "Load password into Smart Card [File 1003]" \
				FALSE "Update Smart Card Transport Keys [AUT1-AUT3]" \
				FALSE "$LOGINOPTION" \
				$ACOS_INIT_OPTION);
		else
			selection=$(zenity --width=400 --height=550 --list --radiolist --title="SmartCard Authentication Setup" \
				--text="$GREETER" \
				--column="" --column="Action" \
				TRUE "First-Time Setup Wizard" \
				FALSE "Create New LUKS Key" \
				FALSE "Update LUKS Initramfs Transport Key [AUT3]" \
				FALSE "Import LUKS encryption key from file to system" \
				FALSE "Get LUKS encryption key from Smart Card [File 1001]" \
				FALSE "Load LUKS encryption key into Smart Card [File 1001]" \
				FALSE "Clear LUKS encryption key from Smart Card [File 1001]" \
				FALSE "Load username into Smart Card [File 1002]" \
				FALSE "Load password into Smart Card [File 1003]" \
				FALSE "Update Smart Card Transport Keys [AUT1-AUT3]" \
				FALSE "$LOGINOPTION" \
				$ACOS_INIT_OPTION);
		fi
	else
		if [[ $1 = "upgrade" ]]; then
			echo "Upgrade mode"
			if [ -e "/etc/smartauth/smartauth.key" ]; then
				OLDKEY="<your key in hexidecimal>"
				NEWKEY=$(cat /etc/smartauth/smartauth.key)
				cp -Rp /etc/smartauth/smartauth.sh.in /usr/bin/smartauth.sh
				sed -i "s#${OLDKEY}#${NEWKEY}#g" /usr/bin/smartauth.sh
				chmod 600 /usr/bin/smartauth.sh
				chmod a+x /usr/bin/smartauth.sh
				echo "Updating initramfs"
				update-initramfs -u -k all
				echo "Securing directories..."
				chmod 600 "/boot/initrd.img-$(uname -r)"
				chmod -R 600 /etc/smartauth
			fi

			if [ -e "/etc/smartauth/smartauthmon.key" ]; then
				OLDKEY="<your key in hexadecimal>"
				NEWKEY=$(cat /etc/smartauth/smartauthmon.key)
			fi
		fi
	fi

	if [[ $selection = "Import LUKS encryption key from file to system" ]]; then
		importlukskey
	fi
	
	if [[ $selection = "First-Time Setup Wizard" ]]; then
		echo "Running first-time setup wizard..."
		zenity --info --text "This setup wizard will prepare your encrypted computer for automatic LUKS unlock and login via SmartCard"
		createlukskey
		if [[ $authenticated = "1" ]]; then
			loadlukskey
			loadusername
			loadpassword
		fi
	fi
	
	if [[ $selection = "Create New LUKS Key" ]]; then
		echo "Creating new LUKS key..."
		createlukskey
	fi

	if [[ $selection = "Get LUKS encryption key from Smart Card [File 1001]" ]]; then
		echo "Getting LUKS key..."
		authenticatecard "AUT1"
		if [[ $authenticated = "1" ]]; then
			get_file "10 01"
			zenity --info --text "LUKS key is currently in file:\n$RESPONSE\n\nThis file will be deleted upon completion of this script."
		fi
	fi

	if [[ $selection = "Load LUKS encryption key into Smart Card [File 1001]" ]]; then
		loadlukskey
	fi

	if [[ $selection = "Clear LUKS encryption key from Smart Card [File 1001]" ]]; then
		clearlukskey
	fi

	if [[ $selection = "Load username into Smart Card [File 1002]" ]]; then
		loadusername
	fi

	if [[ $selection = "Load password into Smart Card [File 1003]" ]]; then
		loadpassword
	fi

	if [[ $selection = "Update LUKS Initramfs Transport Key [AUT3]" ]]; then
		cp -Rp /etc/smartauth/smartauth.sh.in /usr/bin/smartauth.sh
		OLDKEY="<your key in hexidecimal>"
		authenticatecard "AUT3"
		if [[ $authenticated = "1" ]]; then
			NEWKEY=$autkey
			echo $NEWKEY > /etc/smartauth/smartauth.key
			sed -i "s#${OLDKEY}#${NEWKEY}#g" /usr/bin/smartauth.sh
			chmod 600 /usr/bin/smartauth.sh
			chmod a+x /usr/bin/smartauth.sh
			echo "Updating initramfs"
			update-initramfs -u -k all
			echo "Securing directories..."
			chmod 600 "/boot/initrd.img-$(uname -r)"
			chmod -R 600 /etc/smartauth
			if [ -e "/etc/smartauth/smartauthmon.key" ]; then
				echo "TDE login disabled; not altering"
			else
				selection="Enable automatic login for TDE"
			fi
		else
			zenity --error --text "A SmartCard authentication error has occurred.\nNo changes have been made to your system."
		fi
	fi
	
	if [[ $selection = "Update Smart Card Transport Keys [AUT1-AUT3]" ]]; then
		echo "Updating AUT1..."
		authenticatecard "AUT1"
		if [[ $authenticated = "1" ]]; then
			if [[ $COMMAND_MODE == "acos" ]]; then		
				# Select EF 10FD under DF 1000
				echo "$SELECT_FILE 10 FD" > $SECURE_DIRECTORY/query
				scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
				echo $(cat $SECURE_DIRECTORY/response2)
		
				# Initialize key records in file 10FD
				# Key 1, 8-byte 1DES authentication only
				autkey=""
				while [[ ${#autkey} != 16 ]]; do
					autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT1] in hexidecimal.  Example: 0123456789abcdef")
				done
				autkey2=${autkey:0:2}
				autkey2="${autkey2} ${autkey:2:2}"
				autkey2="${autkey2} ${autkey:4:2}"
				autkey2="${autkey2} ${autkey:6:2}"
				autkey2="${autkey2} ${autkey:8:2}"
				autkey2="${autkey2} ${autkey:10:2}"
				autkey2="${autkey2} ${autkey:12:2}"
				autkey2="${autkey2} ${autkey:14:2}"
				echo "00 DC 00 00 0C 81 01 55 05 $autkey2" > $SECURE_DIRECTORY/query
				scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
				echo $(cat $SECURE_DIRECTORY/response2)
				# Key 2, 8-byte 1DES authentication only
				autkey=""
				while [[ ${#autkey} != 16 ]]; do
					autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT2] in hexidecimal.  Example: 0123456789abcdef")
				done
				autkey2=${autkey:0:2}
				autkey2="${autkey2} ${autkey:2:2}"
				autkey2="${autkey2} ${autkey:4:2}"
				autkey2="${autkey2} ${autkey:6:2}"
				autkey2="${autkey2} ${autkey:8:2}"
				autkey2="${autkey2} ${autkey:10:2}"
				autkey2="${autkey2} ${autkey:12:2}"
				autkey2="${autkey2} ${autkey:14:2}"
				echo "00 DC 00 02 0C 82 01 55 05 $autkey2" > $SECURE_DIRECTORY/query
				scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
				echo $(cat $SECURE_DIRECTORY/response2)
				# Key 3, 8-byte 1DES authentication only
				autkey=""
				while [[ ${#autkey} != 16 ]]; do
					autkey=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT3] in hexidecimal.  Example: 0123456789abcdef")
				done
				autkey2=${autkey:0:2}
				autkey2="${autkey2} ${autkey:2:2}"
				autkey2="${autkey2} ${autkey:4:2}"
				autkey2="${autkey2} ${autkey:6:2}"
				autkey2="${autkey2} ${autkey:8:2}"
				autkey2="${autkey2} ${autkey:10:2}"
				autkey2="${autkey2} ${autkey:12:2}"
				autkey2="${autkey2} ${autkey:14:2}"
				echo "00 DC 00 02 0C 83 01 55 05 $autkey2" > $SECURE_DIRECTORY/query
				scriptor $SECURE_DIRECTORY/query 1> $SECURE_DIRECTORY/response2
				echo $(cat $SECURE_DIRECTORY/response2)
			fi

			if [[ $COMMAND_MODE == "cryptoflex" ]]; then
				autkey4=$(zenity --entry --hide-text --title="SmartCard Transport Key" --text="Please enter the new 16-character Smart Card transport key [AUT1] in hexidecimal.  Example: 0123456789abcdef")
				if [[ ${#autkey4} -eq 16 ]]; then
					autkey2=${autkey4:0:2}
					autkey2="${autkey2} ${autkey4:2:2}"
					autkey2="${autkey2} ${autkey4:4:2}"
					autkey2="${autkey2} ${autkey4:6:2}"
					autkey2="${autkey2} ${autkey4:8:2}"
					autkey2="${autkey2} ${autkey4:10:2}"
					autkey2="${autkey2} ${autkey4:12:2}"
					autkey2="${autkey2} ${autkey4:14:2}"
					echo "Attempting Smart Card key update..."
					updatekey ${autkey2}
					autkey=$autkey4
					if [[ $authenticated = "1" ]]; then
						cp -Rp /etc/smartauth/smartauth.sh.in /usr/bin/smartauth.sh
						OLDKEY="<your key in hexidecimal>"
						authenticatecard "AUT3"
						if [[ $authenticated = "1" ]]; then
							NEWKEY=$autkey
							echo $NEWKEY > /etc/smartauth/smartauth.key
							sed -i "s#${OLDKEY}#${NEWKEY}#g" /usr/bin/smartauth.sh
							chmod 600 /usr/bin/smartauth.sh
							chmod a+x /usr/bin/smartauth.sh
							echo "Updating initramfs"
							update-initramfs -u -k all
							echo "Securing directories..."
							chmod 600 "/boot/initrd.img-$(uname -r)"
							chmod -R 600 /etc/smartauth
							if [ -e "/etc/smartauth/smartauthmon.key" ]; then
								selection="Enable automatic login for TDE"
							else
								echo "TDE login disabled; not altering"
							fi
						else
							zenity --error --text "A SmartCard authentication error has occurred."
						fi
					else
						zenity --error --text "A SmartCard authentication error has occurred."
					fi
				else
					echo "AUT1 key not 16 characters!"
					zenity --error --text "The new transport key is invalid!"
				fi
			fi
		fi
	fi

	if [[ $selection = "Enable automatic login for TDE" ]]; then
		OLDKEY="<your key in hexadecimal>"
		authenticatecard "AUT2"
		if [[ $authenticated = "1" ]]; then
			NEWKEY=$autkey
			echo $NEWKEY > /etc/smartauth/smartauthmon.key
			update-rc.d smartauthlogin defaults
			/etc/init.d/smartauthlogin stop
			/etc/init.d/smartauthlogin start
		fi
	fi

	if [[ $selection = "Disable automatic login for TDE" ]]; then
		/etc/init.d/smartauthlogin stop
		rm -rf /etc/smartauth/smartauthmon.key
		update-rc.d -f smartauthlogin remove
	fi

	#if [[ $selection = "Initialize blank ACOS card" ]]; then
	if [[ $selection = "Initialize-blank-ACOS" ]]; then
		initializeacos
	fi

	if [[ $selection = "" ]]; then
		echo "Exiting!"
		rm -rf $SECURE_DIRECTORY
		chmod -R 600 /etc/smartauth
		chown -R root /etc/smartauth
		chmod a+x /usr/bin/smartauth.sh
		chmod 600 "/boot/initrd.img-$(uname -r)"
		chown root "/boot/initrd.img-$(uname -r)"
		exit
	fi
done